Hi, is anyone familiar with 709 truck brakes (maybe 508's are the same) I have a leaky wheel cylinder, and went to have a look, but the drum wouldn't budge. I'm wondering if I have to undo the very big centre nut as well. I couldn't see any set screws securing the drum so I'm thinking it must be the big nut. Any advice most apreaciated.

Hi
I think you're in the wrong thread... but is it a cab-forward 709, or more a standard van body, like the 508? Are the brakes hydraulic, or an air-hydraulic combo? Front or back axle? Year? etc etc etc... ... ...
Let us know!
Giles

PM forum member Kerry. He's owned one of those older MBZ cab-over vans and can probably get you squared away.

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Never a dull moment at Berry Hill Farm.

I've owned a 307 and a 409 but nothing as big as a 7XX. I also didn't pull the drums on mine so I'm not much help. There are a couple of European expedition camper forums with sub forums devoted to MB trucks like the 508's and 911's. Those guys would know the answers

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1977 300d 70k--sold 08
1985 300TD 185k+
1984 307d 126k--sold 8/03
1985 409d 65k--sold 06
1984 300SD 315k--daughter's car
1979 300SD 122k--sold 2/11
1999 Fuso FG Expedition Camper
1993 GMC Sierra 6.5 TD 4x4
1982 Bluebird Wanderlodge CAT 3208--Sold 2/13